Hydraulic Modelling in Practice: From Design Assumptions to Real Infrastructure

Hydraulic and computational modelling now plays a central role in water infrastructure decision-making, shaping outcomes in flood management, drainage design, coastal resilience, and network planning. However, the value of these models depends not only on software capability, but also on how well engineers understand the assumptions, limitations, and uncertainties embedded within them.

This session examines hydraulic modelling from a practical engineering perspective, focusing on how models are developed, interpreted, and applied in real infrastructure projects. It explores the relationship between computational outputs and engineering judgement, and how modelling informs design decisions in complex water systems where risk and uncertainty must be carefully managed.

Key Topics Discussed:

• The role of hydraulic and CFD modelling in water infrastructure
• Model development, calibration, and validation
• Understanding modelling assumptions and limitations
• Managing uncertainty in hydraulic modelling
• Interpreting modelling results for engineering decisions
• Applying modelling to flood management, drainage, and coastal resilience
• Integrating modelling into infrastructure planning and risk management
• Practical lessons for improving project outcomes through hydraulic modelling